Results 201 to 210 of about 5,554,949 (261)
GBS‐MeDIP: A method for the simultaneous identification of genetic and epigenetic variants in tumors
FEBS Open Bio, EarlyView.GBS‐MeDIP combines DNA sequencing with enrichment of methylated DNA to profile genetic and epigenetic variation in the same reduced genomic fraction. Applied to gastric cancer and parathyroid tumors, it identifies sequence variants, copy number changes, and differentially methylated regions together, helping distinguish true epigenetic changes from ...
Fábio Pértille +6 more
wiley +1 more source
Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling
FEBS Open Bio, EarlyView.Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt +2 more
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Aging and Cancer, EarlyView.This prospective study demonstrates that laparoscopic sphincter‐preserving surgery is feasible for elderly patients. While overall survival reaches 70% at 5 years, advanced T‐stage and the omission of neoadjuvant therapy significantly drive recurrence, highlighting the need for personalized geriatric protocols despite logistical challenges.
Huu Duc Ho +4 more
wiley +1 more source
Translucency, contrast ratio and fluorescence of esthetic materials
Dental Materials, 2018 This study evaluated the translucency, contrast ratio and fluorescence of resin nanoceramic and zirconia materials employed for manufacturing of the indirect restorations.
Kauling, A. E. C. +4 more
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Grayscale contrast enhancement based on greyscale-based contrast-to-noise ratio
Medical Imaging 2021: Image Perception, Observer Performance, and Technology Assessment, 2021Subjective reading is still the majority way in current medical image diagnostics, and the visualization effect of images is one important factor which may affect the reading performance or diagnostic quality. In computed tomography (CT), CT numbers are converted into greyscale images by the display window settings.
Wei Zhou +3 more
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A contrast ratio constraint on stereo matching
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1995Stereopsis employs differences in the location of features in the two eyes to reconstruct their relative depths. Computational models largely ignore the contrast of these features; they simply require them to be visible in each eye and to possess the same contrast polarity.
H S, Smallman, S P, McKee
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An analysis of elastographic contrast-to-noise ratio
Ultrasound in Medicine & Biology, 1998We present a theoretical formalism and simulation results that allow the incorporation of the elastic contrast properties of tissues with simple geometries into the elastographic noise models developed previously. This analysis results in the computation of the elastographic contrast-to-noise ratio (CNRe).
T, Varghese, J, Ophir
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The Generalized Contrast-to-Noise Ratio
2018 IEEE International Ultrasonics Symposium (IUS), 2018Many adaptive algorithms claim to provide higher contrast than delay-and-sum (DAS). These claims are often backed by estimations of the contrast-to-noise ratio (CNR). Intuitively, we assume that higher CNR leads to higher probability of lesion detection, and this is indeed the case for DAS.
Alfonso Rodriguez-Molares +5 more
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Content-aware contrast ratio measure for images
Signal Processing: Image Communication, 2018Abstract In image fidelity assessment it is often necessary to quantify the level of visibility between a structure of interest or foreground and its surrounding background, i.e., the contrast ratio. Today, there is no standard procedure to measure the contrast ratio in digital images.
Benhur Ortiz Jaramillo +3 more
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Articulation: Brightness, Apparent Illumination, and Contrast Ratios
Perception, 2002Luminance edges in the environment can be due to regions that differ in reflectance or in illumination. In three experiments, we varied the spatial organization of 10 achromatic (simulated) surfaces so that some arrangements were consistent with an ecologically valid and parsimonious interpretation of 5 surfaces under two different illuminants.
James A, Schirillo, Steven K, Shevell
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